This is my "tent." Is 4ft tall, 5ft long, and 2ft deep. This photo was taken last week. Today, I added another strip of t8 light 4ft.. Now, total I have 3 strips, 6 t8 bulbs. I am not sure if the middle strip kelvin range is ideal.
The middle strip, just put it on today, is using 2 6500k bulbs (about more than a year old). The back and the front are using a combination of 30k+51k (new and been using them for 2 weeks).